1995657921 is an odd 10-digits composite number following 1995657920
and preceding 1995657922 . In scientific notation, it is written as 1.995657921 × 10^9.
The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors.
There are 1316722176 positive integers (up to 1995657921) that are relatively prime to 1995657921.
1995657921 has 8 divisors, whose sum is 2240258440
The reverse of 1995657921 is 1297565991
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 54
Digital Root 9
Name
one billion nine hundred ninety-five million six hundred fifty-seven thousand nine hundred twenty-one
Scientific notation
1.995657921 × 10^9
Engineering notation
1.995657921 × 10^9
Prime Factorization
9 × 97 × 2285977
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1995657921
Product of the distinct prime numbers
The prime factorization of 1995657921 is 9 × 97 × 2285977.
Since it has a total of 3 prime factors.
8 , 8 , 12 , 69 , 271 , 867 , 3445 , 6136 , 9496 , 91162 , 493190 , 869649 , 3988481 , 509308 , 70713561 , 81254194 , 588456275 , 269049454 , 5083371360 , 9692187525
n×2
3991315842
n×3
5986973763
n×4
7982631684
n×5
9978289605
n÷2
997828960.5
n÷3
665219307
n÷3
498914480.25
n÷5
399131584.2
n2
3982650537650042241
n3
7.9480080920362E+27
n4
1.5861505305044E+37
n5
3.1654138700995E+46
2 √n
44672.787253539
3 √n
1259.0086098061
4 √n
211.35937938388
5 √n
72.446468497058
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1995657920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1995657921 can be divided by 8 positive divisors.
The sum of these divisors (counting 1995657921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110111100110101001011000001
3
Ternary
12011002011221000100
4
Quaternary
1312330311023001
5
Quinary
13041342023141
6
Senary
530005513013
8
Octal
16674651301
10
Decimal
1995657921
12
Duodecimal
478412769
16
Hexadecimal
76f352c1
20
Vigesimal
1b3ch4g1
36
Base36
x05vi9
md5
d81b91faaf4e952b60a0c3ae2216d89c
sha1
0700b3631d1f8633eebed377b5a2cd49b51f4892
sha256
1410e8e1ad5f36aba99792d7551bca6f508699d6712a112143dca07202c8242b
sha512
aec84d94997fc6dee383070bc85ffcbe7a212f7723fc0a43ef5e19689c609b96d8cc8c2bee378c297ab651b8faf398f3f4d7e89073e94d814e295794c2e79858
ripemd-160
91b0202e7314bca95116db035b841c935fda81ef
Diameter
3991315842
Circumference
12539088527.384
Area
1.2511865670897E+19
Volume
3.3292538443484E+28
Surface area
5.0047462683587E+19
Circumference
12539088527.384
Perimeter
7982631684
Area
3982650537650042241
Diagonal
2822286497.7355
Surface area
2.38959032259E+19
Volume
7.9480080920362E+27
Space diagonal
3456580913.6993
Perimeter
5986973763
Area
1.7245382700003E+18
Altitude
1728290456.8496
Surface area
1.7245382700003E+18
Volume
9.3668173646739E+26
Height
940762165.91183